TightVent Europe

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TightVent Europe logo

TightVent Europe is a platform focused on building and ductwork airtightness issues. [1] The platform's creation was triggered to meet the 2020 targets of the Directive on the energy performance of buildings [2] and overcome the challenges related to envelope and ductwork leakage towards the generalization of nearly zero-energy buildings. [3] The platform's main activities include producing and disseminating policy-oriented publications, networking among local or national airtightness associations, and organizing conferences, workshops and webinars. [4]



TightVent Europe was launched and initiated in January 2011 by INIVE EEIG (International Network for Information on Ventilation and Energy Performance), a registered European Economic Interest Grouping (EEIG) whose members include building research centers in Europe. [5] Since then, the platform has received the financial and/or technical support from its partners: ACIN Instruments, BCCA, BlowerDoor GmbH, Buildings Performance Institute Europe, dooApp, Eurima, Industrias Gonal, Lindab, MEZ-TECHNIK, Retrotec, Soudal and SIGA.

TightVent Airtightness Associations Committee-TAAC

In September 2012, TightVent Europe launched the TightVent Airtightness Associations Committee (TightVent TAAC committee) with the primary goal to promote reliable testing and reporting procedures. [6] [7] [8] At present, the participants are from Belgium, Canada, Czech Republic, Denmark, Estonia, France, Germany, Hungary, Ireland, Latvia, Lithuania, Netherlands, Poland, Portugal, Spain, Sweden, Switzerland, UK and the USA. [8] The scope of this committee includes various aspects such as:


Since 2011, TightVent Europe has published 6 reports [9] in the fields of building and ductwork airtightness. The first publication on the challenges for building and ductwork airtightness was released in 2011 entitled as: “Critical steps for a wide scale implementation of building and ductwork airtightness”. [10] It included an introductory paper browsing the issues of concern and collect a series of technical documents, namely those produced within the ASIEPI project as well as within the SAVE-DUCT and AIRWAYS projects. [4] Another publication: “Methods and techniques for airtight buildings” was released in 2012, with an overview to the design principles and construction methods for building airtightness. [11] Moreover, the publication: "Building air leakage databases in energy conservation policies: Analysis of selected initiatives in 4 European countries and the USA" [12] was also released in 2012 with information on existing envelope air leakage databases from five countries: Czech Republic, France, Germany, UK and USA. Furthermore, another report was produced in close collaboration with the AIVC, "Building airtightness: a critical review of testing reporting and quality schemes in 10 countries", [13] in 2012; a review of testing and reporting about building airtightness and quality management issues for achieving a good airtightness in 10 countries .In 2013, TightVent Europe published "Building and ductwork airtightness: Selected papers from the REHVA special journal issue on ‘airtightness’" [14] composed of relevant contributions from the special issue on airtightness of the REHVA journal. [15]


TightVent Europe publishes a biannual newsletter with up to date information on developments in respect to building and ductwork airtightness, including policy issues, publications, events, innovative technologies, case studies and research activities. [3]

Related Research Articles

<span class="mw-page-title-main">Heating, ventilation, and air conditioning</span> Technology of indoor and vehicular environmental comfort

Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality. HVAC system design is a subdiscipline of mechanical engineering, based on the principles of thermodynamics, fluid mechanics, and heat transfer. "Refrigeration" is sometimes added to the field's abbreviation as HVAC&R or HVACR, or "ventilation" is dropped, as in HACR.

<span class="mw-page-title-main">Ventilation (architecture)</span> Intentional introduction of outside air into a space

Ventilation is the intentional introduction of outdoor air into a space. Ventilation is mainly used to control indoor air quality by diluting and displacing indoor pollutants; it can also be used to control indoor temperature, humidity, and air motion to benefit thermal comfort, satisfaction with other aspects of the indoor environment, or other objectives.

<span class="mw-page-title-main">Blower door</span>

A blower door is a machine used to perform a building air leakage test. It can also be used to measure airflow between building zones, to test ductwork airtightness and to help physically locate air leakage sites in the building envelope.

<span class="mw-page-title-main">Passive house</span> Type of house

Passive house is a voluntary standard for energy efficiency in a building, which reduces the building's ecological footprint. Conforming to these standards results in ultra-low energy buildings that require little energy for space heating or cooling. A similar standard, MINERGIE-P, is used in Switzerland. Standards are available for residential properties and several office buildings, schools, kindergartens and a supermarket have also been constructed to the standard. The design is not an attachment or supplement to architectural design, but a design process that integrates with architectural design. Although it is generally applied to new buildings, it has also been used for refurbishments.

<span class="mw-page-title-main">Containment building</span> Structure surrounding a nuclear reactor to prevent radioactive releases

A containment building is a reinforced steel, concrete or lead structure enclosing a nuclear reactor. It is designed, in any emergency, to contain the escape of radioactive steam or gas to a maximum pressure in the range of 275 to 550 kPa. The containment is the fourth and final barrier to radioactive release, the first being the fuel ceramic itself, the second being the metal fuel cladding tubes, the third being the reactor vessel and coolant system.

Building regulations in the United Kingdom are statutory instruments or statutory regulations that seek to ensure that the policies set out in the relevant legislation are carried out. Building regulations approval is required for most building work in the UK. Building regulations that apply across England and Wales are set out in the Building Act 1984 while those that apply across Scotland are set out in the Building (Scotland) Act 2003. The Act in England and Wales permits detailed regulations to be made by the Secretary of State. The regulations made under the Act have been periodically updated, rewritten or consolidated, with the latest and current version being the Building Regulations 2010. The UK Government is responsible for the relevant legislation and administration in England, the Welsh Government is the responsible body in Wales, the Scottish Government is responsible for the issue in Scotland, and the Northern Ireland Executive has responsibility within its jurisdiction. There are very similar Building Regulations in the Republic of Ireland. The Building Regulations 2010 have recently been updated by the Building Safety Act 2022.

A carbon dioxide sensor or CO2 sensor is an instrument for the measurement of carbon dioxide gas. The most common principles for CO2 sensors are infrared gas sensors (NDIR) and chemical gas sensors. Measuring carbon dioxide is important in monitoring indoor air quality, the function of the lungs in the form of a capnograph device, and many industrial processes.

<span class="mw-page-title-main">Duct (flow)</span> Conduit used in heating, ventilation, and air conditioning

Ducts are conduits or passages used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. The needed airflows include, for example, supply air, return air, and exhaust air. Ducts commonly also deliver ventilation air as part of the supply air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.

<span class="mw-page-title-main">Crawl space</span> Enclosed space below a structure that is too short to stand erect in

A crawl space or crawlspace is an unoccupied, unfinished, narrow space within a building, between the ground and the first floor. The crawl space is so named because there is typically only enough room to crawl rather than stand; anything larger than about 1 to 1.5 metres and beneath the ground floor would tend to be considered a basement.

<span class="mw-page-title-main">Grease duct</span>

A grease duct is a duct that vents grease-laden flammable vapors from commercial cooking equipment such as stoves, deep fryers, and woks to the outside of a building or mobile food preparation trailer. Grease ducts are part of the building's passive fire protection system. The cleaning schedule is typically dictated by fire code or related safety regulations.

The Energy Performance of Buildings Directive is the European Union's main legislative instrument aiming to promote the improvement of the energy performance of buildings within the European Union. It was inspired by the Kyoto Protocol which commits the EU and all its parties by setting binding emission reduction targets.

<span class="mw-page-title-main">Fire damper</span> Type of passive fire protection

Fire dampers are passive fire protection products used in heating, ventilation, and air conditioning (HVAC) ducts to prevent and isolate the spread of fire inside the ductwork through fire-resistance rated walls and floors. Fire/smoke dampers are similar to fire dampers in fire resistance rating, and also prevent the spread of smoke inside the ducts. When a rise in temperature occurs, the fire damper closes, usually activated by a thermal element which melts at temperatures higher than ambient but low enough to indicate the presence of a fire, allowing springs to close the damper blades. Fire dampers can also close following receipt of an electrical signal from a fire alarm system utilising detectors remote from the damper, indicating the sensing of heat or smoke in the building occupied spaces or in the HVAC duct system.

<span class="mw-page-title-main">Duct leakage testing</span>

A duct leakage tester is a diagnostic tool designed to measure the airtightness of forced air heating, ventilating and air-conditioning (HVAC) ductwork. A duct leakage tester consists of a calibrated fan for measuring an air flow rate and a pressure sensing device to measure the pressure created by the fan flow. The combination of pressure and fan flow measurements are used to determine the ductwork airtightness. The airtightness of ductwork is useful knowledge when trying to improve energy conservation.

<span class="mw-page-title-main">Air Infiltration and Ventilation Centre</span>

Air Infiltration and Ventilation Centre (AIVC) is the International Energy Agency information centre on energy efficient ventilation of buildings.

Building airtightness can be defined as the resistance to inward or outward air leakage through unintentional leakage points or areas in the building envelope. This air leakage is driven by differential pressures across the building envelope due to the combined effects of stack, external wind and mechanical ventilation systems.

<span class="mw-page-title-main">Venticool</span>

Venticool is an international platform formed in 2012 focusing on ventilative cooling issues, with the overall goal to "boost awareness, communication, networking and steering research and development efforts in the field" . In 2020, venticool's focus was broadened towards resilient ventilative cooling.

Ductwork airtightness can be defined as the resistance to inward or outward air leakage through the ductwork envelope. This air leakage is driven by differential pressures across the ductwork envelope due to the combined effects of stack and fan operation.

<span class="mw-page-title-main">Indoor Environmental Quality Global Alliance</span>

The Indoor Environmental Quality Global Alliance (IEQ-GA) was initiated in 2014 aiming to improve the actual, delivered indoor environmental quality in buildings through coordination, education, outreach and advocacy. The alliance works to supply information, guidelines and knowledge on the indoor environmental quality (IEQ) in buildings and workplaces, and to provide occupants in buildings and workplaces with an acceptable indoor environmental quality and help promote implementation in practice of knowledge from research on the field.

<span class="mw-page-title-main">International Energy Agency Energy in Buildings and Communities Programme</span>

The International Energy Agency Energy in Buildings and Communities Programme, formerly known as the Energy in Buildings and Community Systems Programme (ECBCS), is one of the International Energy Agency's Technology Collaboration Programmes (TCPs). The Programme "carries out research and development activities toward near-zero energy and carbon emissions in the built environment".

<span class="mw-page-title-main">Ventilative cooling</span>

Ventilative cooling is the use of natural or mechanical ventilation to cool indoor spaces. The use of outside air reduces the cooling load and the energy consumption of these systems, while maintaining high quality indoor conditions; passive ventilative cooling may eliminate energy consumption. Ventilative cooling strategies are applied in a wide range of buildings and may even be critical to realize renovated or new high efficient buildings and zero-energy buildings (ZEBs). Ventilation is present in buildings mainly for air quality reasons. It can be used additionally to remove both excess heat gains, as well as increase the velocity of the air and thereby widen the thermal comfort range. Ventilative cooling is assessed by long-term evaluation indices. Ventilative cooling is dependent on the availability of appropriate external conditions and on the thermal physical characteristics of the building.


  1. BUILD UP energy solutions for better buildings, "Launching of TightVent Europe - the Building and Ductwork Airtightness platform", 2011
  2. European Commission, “DIRECTIVE (EU) 2018/844 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 May 2018 amending Directive 2010/31/EU on the energy performance of buildings and Directive 2012/27/EU on energy efficiency”, Official Journal of the European Union, 2018
  3. 1 2 BUILD UP energy solutions for better buildings: "TightVent Newsletter 1", May, 2011
  4. 1 2 P. Wouters, F. R. Carrie: "Airtightness of buildings and ductwork: The TightVent Europe platform", BUILDAIR Symposium, 2011
  5. TightVent Europe: "More about TightVent Europe", 2011
  6. BUILD UP energy solutions for better buildings: "TightVent Newsletter 3", September, 2012
  7. BUILD UP energy solutions for better buildings: "TightVent Newsletter 4", March, 2013
  8. 1 2 TightVent Europe: "TightVent Airtightness Associations Committee – TAAC", 2013
  9. TightVent Europe: "TightVent reports", 2014
  10. BUILD UP energy solutions for better buildings : "Critical steps for wide scale implementation of building and ductwork airtightness", 2011
  11. BUILD UP energy solutions for better buildings: "Methods and techniques for airtight buildings", 2012
  12. BUILD UP energy solutions for better buildings: "Building air leakage databases in energy conservation policies: analysis of selected initiatives in 4 European countries and the USA", 2012
  13. F. R. Carrie, P. Wouters: "TN 67: Building airtightness: a critical review of testing, reporting and quality schemes in 10 countries", AIVC, 2012
  14. TightVent Europe: "Building and ductwork airtightness: Selected papers from the REHVA special journal issue on ‘airtightness’", 2013
  15. Federation of European Heating, Ventilation and Air Conditioning Associations - REHVA: " Special Issue on airtightness", Volume: 50, Issue: 1, January 2013